TLS Online TPP Program

#Question id: 1218


Hormones are chemical substances produced in one organ that are released into the bloodstream and affect the function of a target organ. Which of the following conditions is required for the target organ to respond to a particular hormone?

#Unit 4. Cell Communication and Cell Signaling
  1. Cells in the target organ must modify their plasma membranes to allow the hormone to enter the cytoplasm.

  2. The target organ must be the same as the organ that produced the hormone.

  3. The target organ must have the opposite mating type of the organ that produced the hormone.

  4. The target organ must have receptors that recognize and bind the hormone molecule.

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TLS Online TPP Program

#Question id: 29457

#Unit 6. System Physiology – Plant

Covalent conjugation of amino acids to IAA can also result in permanent inactivation (storage or degradation), here certain combination is given (∧ shows conjugation)
a. IAA ∧ myo-inositol/Gluc/Ala/Leu/Me ---Reversible (storage)
b. IAA ∧ myo-inositol/Gluc/Ala/Leu/Me ---irreversible (degradation)
c. IAA ∧ oxIAA/GH3-Asp-Glu/3-Methyleneoxidole ---Reversible (storage)
d. IAA ∧ oxIAA/ GH3-Asp-Glu/3-Methyleneoxidole---irreversible (degradation)

Which of the following is correctly paired

TLS Online TPP Program

#Question id: 29458

#Unit 6. System Physiology – Plant

Which of the following is an essential for AUXIN transport in cell called as chemiosmotic model of auxin transport

TLS Online TPP Program

#Question id: 29459

#Unit 6. System Physiology – Plant

Which of the following protein involved in nondirectional auxin movement in shoot and root tip

TLS Online TPP Program

#Question id: 29460

#Unit 6. System Physiology – Plant

Naturally occurring auxin transport inhibitors are___
a. 1-NOA (1-naphthoxyacetic acid)
b. Quercetin (flavonol)
c. Genistein
d. NPA and TIBA
Which of the following is correct

TLS Online TPP Program

#Question id: 29461

#Unit 6. System Physiology – Plant

Which of the following are involved in inhibiting auxin efflux
a. NPA
b. IBA
c. flavonol
d. Cytochalasin D
Which of the following is correct

TLS Online TPP Program

#Question id: 29462

#Unit 6. System Physiology – Plant

Auxin-induced proton extrusion performs
a. Acidification the cell wall 
b. Alkalisation of the call wall
c. Increases cell extension
d. Decrease in cell extension
Which of the following is correct